2%, 79 4%); and during

the second year of life, vaccine e

the second year of life, vaccine efficacy against Selleck SKI 606 severe RVGE, was 19.6% (95% CI: <0.0%, 44.4%). Overall, the vaccine was efficacious in Africa through the entire follow-up period, as well as through the first year of life [6]. Among severe RVGE cases with complete molecular testing results, the majority were found to be caused by rotaviruses with G and/or P genotypes covered by PRV (95.1% [78/82] in Ghana, 88.9% [16/18] in Kenya, and 97.1% [99/102] in Mali) [6]. By individual rotavirus genotype, the estimates of efficacy against severe RVGE through the complete follow up period, the first year of life and during the second year of life are shown in Table 1. check details Table 2 shows the efficacy of PRV against severe RVGE by genotypes (P

and G) contained in the vaccine, G genotypes not contained in the vaccine, P genotypes not contained in the vaccine, and by genotypes G8 and G10 combined. The vaccine provided significant protection against severe RVGE caused by rotavirus genotypes contained in the vaccine as well as rotavirus genotypes not contained in the vaccine (i.e., G8, G10, P[4], and P[6]) through the first year of life and the entire efficacy follow-up period of nearly 2 years. The efficacy of the vaccine in the second year of life was not statistically significant. The efficacy against the rotavirus genotype G8 appeared even higher than the efficacy against individual rotavirus genotypes contained in the vaccine,

but the study was not designed to differentiate relative efficacy against individual genotypes. Although not statistically significant, the vaccine also showed efficacy against severe gastroenteritis of any etiology (10.6% [95% CI: <0, 24.9] and 21.5% [95% CI: <0, 38.4] through the entire follow-up period and the first year of life, respectively) (Table 3). Although a drop in efficacy was expected in the second year of life, the study was not powered to evaluate the efficacy of the vaccine in the second year alone. There were few RVGE cases that occurred before the 3-dose regimen was fully administered, and the evaluation of efficacy between doses did not yield statistically significant results. There were 4 cases of severe RVGE in the vaccine group those and 0 in the placebo group between doses 1 and 2, and there were 2 cases of severe RVGE in the vaccine group and 1 in the placebo group between doses 2 and 3. Table 4 shows the efficacy of PRV against RVGE of any severity. Overall, an efficacy of 49.2% (95%CI: 29.9, 63.5) and 30.5% (95%CI: 16.7, 42.2) was observed in the first year of life and throughout the entire follow-up period, respectively. Table 5 shows the efficacy of PRV against RVGE of different severities through the first year of life, during the second year of life, and through the entire follow-up period in Africa. There was a slight trend towards higher efficacy between severe and very severe RVGE.